IO Devices

Relay Panel

The EtherCAT® relay panel combines 56 digital inputs (24 VDC) and 32 digital outputs (24 VDC) all within a small robust package. Using the latest EtherCAT® communications technologies to interface the digital I/O to Control System Software.

The relay panel has 32 digital outputs that are controlled using mechanical relays, each capable of outputting 24 VDC. The outputs are spread amongst two connectors with each connector being divided into two banks, left and right. Amongst the two banks, the outputs are split into two groups, one having individual voltage free outputs and the other sharing a common control voltage.

There are 20 common control/switched voltage outputs, 10 of which lie on the left bank and 10 that lie on the right bank. The individual left and right banks have their relays powered by BANKL and BANKR respectively.

The remaining 12 outputs are all voltage free outputs, and have been divided up into a group of 8 and a group of 4 outputs, where each group has High Voltage (HV) and Protective Earth Low Voltage (PEVL) isolation.